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| Kraken海洋声学模型及其声传播与衰减的数值试验 | |
| 引用本文： | 李佳讯,张韧,王彦磊,黄志松,张丽华.Kraken海洋声学模型及其声传播与衰减的数值试验[J].海洋科学进展,2009,27(1). |
| 作者姓名： | 李佳讯 张韧 王彦磊 黄志松 张丽华 |
| 作者单位： | 1. 解放军理工大学,气象学院,江苏,南京,211101 2. 解放军61741部队,北京,100081 3. 空军上海指挥所,气象中心,上海,200433 |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| 摘 要： | 针对射线、简正波、PE、FFP等传播模型的算法原理及其适用的海洋环境,建立了以Kraken声学模型计算软件为基础的海洋声场数值预报系统.应用该预报系统对4组典型的海洋声场进行了数值试验,结果表明:在相同的海面和海底边界条件下,声场分布是由声速剖面和声源位置决定的.在负梯度声场中,所有声线都折向海底,在极限声线外产生阴影区.声源位于声道轴附近的温跃层中会产生波导传播.用射线理论解释了上述现象的成因,指出了其实际应用价值. |
| 关 键 词： | Kraken模型 传播损失 声场预报 声纳探测 |
Kraken Marine Acoustic Model and Its Numerical Experiment for Acoustic Propagation and Decay |
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| LI Jia-xun,ZHANG Ren,WANG Yan-lei,HUANG Zhi-song,ZHANG Li-hua.Kraken Marine Acoustic Model and Its Numerical Experiment for Acoustic Propagation and Decay[J].Advances in Marine Science,2009,27(1). | |
| Authors: | LI Jia-xun ZHANG Ren WANG Yan-lei HUANG Zhi-song ZHANG Li-hua |
| Institution: | 1. Institute of Meteorology;PLA Univ.of Sci.&Tech.;Nanjing 211101;China;2. No.61741 Troops of PLA;Beijing 100081;3. Meteorological Center of Shanghai Airforce Command Post;Shanghai 200433;China |
| Abstract: | According to algorithmic principles for acoustic propagation models, such as ray model, normal wave model, PE, and FFP etc, and their respective applicabilities to marine environments, an acoustic field numerical forecast system is established on the basis of computational software of Kraken acoustic model, and used to the 4 kinds of typical acoustic fields. As shown in the results, the acoustic field distribution depends upon the sound speed profiles and the sound source location if the surface and bottom ... |
| Keywords: | Kraken model propagation loss acoustic field prdiction sonar detection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |